Ball-point pen



FIG. 1 is a top, left front perspective view of a ball-point pen showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is rear elevational view thereof.

FIG. 4 is left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a ball-point pen, as shown and described. 